function $(_sId) {
	return document.getElementById(_sId);
}

function moveDiv(event, _sId) {
	var oObj = $(_sId);
	oObj.onmousemove = mousemove;
	oObj.onmouseup = mouseup;
	oObj.setCapture ? oObj.setCapture() : function() {
	};
	oEvent = window.event ? window.event : event;
	var dragData = {
		x : oEvent.clientX,
		y : oEvent.clientY
	};
	var backData = {
		x : parseInt(oObj.style.top),
		y : parseInt(oObj.style.left)
	};

	function mousemove() {
		var oEvent = window.event ? window.event : event;
		var iLeft = oEvent.clientX - dragData["x"] + parseInt(oObj.style.left);
		var iTop = oEvent.clientY - dragData["y"] + parseInt(oObj.style.top);
		oObj.style.left = iLeft;
		oObj.style.top = iTop;
		dragData = {
			x : oEvent.clientX,
			y : oEvent.clientY
		};
	}

	function mouseup() {
		var oEvent = window.event ? window.event : event;
		oObj.onmousemove = null;
		oObj.onmouseup = null;
		if (oEvent.clientX < 1 || oEvent.clientY < 1) {
			oObj.style.left = backData.y;
			oObj.style.top = backData.x;
		}
		oObj.releaseCapture ? oObj.releaseCapture() : function() {
		};
	}
}

function closeDiv(_sID) {
	var oObj = $(_sID);
	var overlay = $("overlay");
	if (overlay != null) {
		overlay.outerHTML = "";
	}
	oObj.style.display = "none";

}

function showDiv(_sID, event) {
	var arrySize = getPageSize();
	var oObj = $(_sID);
	// 创建一个DIV,改名为 overlay 这个是透明的层
	var oDiv = document.createElement("div");
	oDiv.id = "overlay";
	document.body.appendChild(oDiv);
	var overlay = $("overlay");
	overlay.style.height = arrySize[1];
	overlay.style.width = arrySize[0];
	// alert(arrySize[1]);
	if (event == null) {
		if (oObj.style.left == "") {
			oObj.style.left = arrySize[0] / 2 - 150;
		}

		if (oObj.style.top == "") {
			oObj.style.top = arrySize[0] / 2;
		}
	} else {
		var iEvent = window.event ? window.event : event;
		oObj.style.left = arrySize[0] / 2 - 150; // iEvent.clientX;
		oObj.style.top = arrySize[1] / 2 - 150;// iEvent.clientY;

	}

	oObj.style.display = "block";
	overlay.style.display = "block";
	overlay.style.zindex = oObj.style.zindex - 1;
}

// 取得页面大小
function getPageSize() {

	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight) { // all
																			// but
																			// Explorer
																			// Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla
				// and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth, windowHeight;
	if (self.innerHeight) { // all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement
			&& document.documentElement.clientHeight) { // Explorer 6 Strict
														// Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	if (yScroll < windowHeight) {
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if (xScroll < windowWidth) {
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight)
	return arrayPageSize;
}

	function show(){
		document.getElementById('div1').style.display='block';
		document.getElementById('div2').style.display='block';
	}
	function closeme(){
		document.getElementById('div1').style.display='none';
		document.getElementById('div2').style.display='none';
	}
	function logo_in(){
		alert()
		//验证
		//转向...
		//myform.action=""
		//myform.submit()
		closeme();
	}